| SHSawmill Hydraulics, INC | Farmington | IL | Machinery Manufacturing333210 | 1-19 | ◇ UNVERIFIED |
| SUShigiya USA LTD | Schaumburg | IL | Machinery Manufacturing333517 | 1-19 | ◇ UNVERIFIED |
| TCTuxco CORP | Gurnee | IL | Machinery Manufacturing333319 | 1-19 | ◇ UNVERIFIED |
| WIWallace Industries Inc | South beloit | IL | Machinery Manufacturing333512 | 1-19 | ◇ UNVERIFIED |
| WMWingfield Manufacturing, LLC | Urbana | IL | Machinery Manufacturing333111 | 1-19 | ◇ UNVERIFIED |
| 2A22772 - A & C Challenger Road, LLC | Frankfort | IL | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| 2F2434 Fletcher Street, L.L.C. | Itasca | IL | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| ACA1 Crane Service | Bridgeview | IL | Machinery Manufacturing333923 | — | ◇ UNVERIFIED |
| AMAam Metal Forming Chicago Plant 1 | Chicago | IL | Machinery Manufacturing333513 | — | ◇ UNVERIFIED |
| AWAbest Welding & Eng. Serv. CO | Schiller Park | IL | Machinery Manufacturing333518 | — | ◇ UNVERIFIED |
| ATAccura Tool & Mold INC | Crystal Lake | IL | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| ASAdecco Staffing | East Moline | IL | Machinery Manufacturing333294 | — | ◇ UNVERIFIED |
| AMAdvanced Mobility By Kentucky Trailer | University Park | IL | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
 Advanced Mobility & Shelter Technologies, LLC | Monee | IL | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| APAfco Products INC | Des Plaines | IL | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| ACAgco CORP Dekalb | De Kalb | IL | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| ACAir Cycle CORP | Lisle | IL | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| ADAir Duct Manufacturing, INC. | Addison | IL | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| AMAlin Machining Company, INC. | Melrose Park | IL | Machinery Manufacturing333293 | — | ◇ UNVERIFIED |
| APAlstom Power | Danville | IL | Machinery Manufacturing333611 | — | ◇ UNVERIFIED |
| ABAmbassador Bridge & Paving Supply LLC | Bourbonnais | IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| AMAmber Mechanical Contractors, INC. | Streamwood | IL | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| ASAmerican Shaft CO | Rockford | IL | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| AIAmiberica, INC | Chicago | IL | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| ASAnderson Snow Acquisition LLC | Schiller Park | IL | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| AAndritz | Rockton | IL | Machinery Manufacturing333243 | — | ◇ UNVERIFIED |
| AUAramark Uniform Services | Metropolis | IL | Machinery Manufacturing333312 | — | ◇ UNVERIFIED |
| AIArc Industries, INC. | Schaumburg | IL | Machinery Manufacturing333511 | — | ◇ UNVERIFIED |
| ACArizon Companies | Peoria | IL | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| AArpac | Schiller Park | IL | Machinery Manufacturing333993 | — | ◇ UNVERIFIED |
| APArrem Plastics INC. | Addison | IL | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| AEAteco Engine & Dyno Shop Il INC | Ingleside | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| ADAtlas Die, LLC | Glendale Heights | IL | Machinery Manufacturing333513 | — | ◇ UNVERIFIED |
| ASAts Services LLC | Peoria | IL | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| BBBarak Business Services INC. | Bensenville | IL | Machinery Manufacturing333244 | — | ◇ UNVERIFIED |
| BCBarnant CO | Barrington | IL | Machinery Manufacturing333911 | — | ◇ UNVERIFIED |
| BHBell & Howell Business Equipment | Lincolnwood | IL | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| BABellota Agrisolutions and Tools Usa, LLC | Milan | IL | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| BIBlackhawk Industrial Distribution, INC. | Carol Stream | IL | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| BTBrohn Tech LLC | Ursa | IL | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| BLBukowina LLC | Bensenville | IL | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| CICarbi-grind, Incorporated | Vernon Hills | IL | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| CMCardinal Mfg | Mount Vernon | IL | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| CECaterpillar Engine Systems, INC. | Pontiac | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| CGCaterpillar Global Mining LLC | Carrier Mills | IL | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| CICaterpillar INC | Edwards | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| CICaterpillar INC | East Peoria | IL | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| CICaterpillar INC. | Mossville | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| CICaterpillar, INC. | East Peoria | IL | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| CICaterpillar INC - Mossville | Mossville | IL | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
